Lumia 720 password + vol down button stuck

[Teoc Valentin]

Please help me, someone put a password on my phone and now he can't remember it, and i can't reset the phone becauze the vol down button is stuck.. is there any other chance to reset the phone/password? via NSU or something else ?
PLEASE HELP! thanks in advence

 

[Teoc Valentin]

Help !!